NCC 2022 Volume One - Building Code of Australia Class 2 to 9 buildings
Classification
Building class 1a Building class 1b Building class 2 Building class 3 Building class 4 Building class 5 Building class 6 Building class 7a Building class 7b Building class 8 Building class 9a Building class 9b Building class 9c Building class 10a Building class 10b Building class 10c

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Classification
Building class 1a Building class 1b Building class 2 Building class 3 Building class 4 Building class 5 Building class 6 Building class 7a Building class 7b Building class 8 Building class 9a Building class 9b Building class 9c Building class 10a Building class 10b Building class 10c

D2

Part D2 Provision for escape

Part D2 Provision for escape

NSW D2D3 Number of exits required2019: D1.2

Delete subclause D2D3(4) and insert NSW D2D3(4) as follows:

(4) Class 9 buildings—

  1. In addition to any horizontal exit, not less than 2 exits must be provided from the following:
    1. Each storey if the building has a rise in storeys of more than 6 or an effective height of more than 25 m.
    2. Any storey which includes a patient care area in a Class 9a health-care building.
    3. Any storey that contains sleeping areas in a Class 9c building.
    4. Any storey used as a Class 9b early childhood centre, or any Class 9b early childhood centre which forms part of a storey.
    5. Each storey in a primary or secondary school with a rise in storeys of 2 or more.
    6. Any storey or mezzanine that accommodates more than 50 persons, calculated under D2D18.
    7. Any storey or mezzanine within an auditorium in an entertainment venue.
  2. The requirements of (a) do not apply to a part of a storey that—
    1. is a plant room, machinery room, storeroom, lift-machine room or the like; and
    2. is provided with direct egress to a road, open space or a fire-isolated exit complying with D2D12(2); and
    3. satisfies D2D5 by the provision of 1 exit.

NSW D2D8 Width of exits and paths of travel to exits2019: D1.6(b), (c), (d) and (e)

Insert NSW subclause D2D8(5) in clause D2D8 as follows:

(5) In a Class 9b building used as an entertainment venue—

  1. the aggregate width must be not less than 2 m plus 500 mm for every 50 persons or part in excess of 200; and
  2. D2D8(1), (2) and (3) do not apply; and
  3. where one or more paths of travel merge, the width of the combined path of travel must be not less than the sum of the required widths of those paths of travel; and
  4. the required widths of those paths of travel connecting the exits from the building to a public road or open space must comply with (c); or

NSW D2D9 Width of doorways in exits or paths of travel to exits2019: D1.6, NSW D1.6(f)(vi)

Delete clause D2D9 and insert NSW D2D9 as follows:

In a required exit or path of travel to an exit, the unobstructed width of a doorway must be not less than—

  1. in patient care areas through which patients would normally be transported in beds—
    1. if the doorway provides access to, or from, a corridor of width—
      1. less than 2.2 m — 1200 mm; or
      2. 2.2 m or greater — 1070 mm; and
    2. where the doorway referred to in (i) is fitted with two leaves and one leaf is secured in the closed position in accordance with D3D26(3)(e), the other leaf must permit an unobstructed opening not less than 800 mm wide; or
  2. in patient care areas in a horizontal exit — 1250 mm; or
  3. the unobstructed width of each exit provided to comply with D2D8(1), (2), (3) or (4), minus 250 mm; or
  4. in a Class 9c building, 800 mm, except—
    1. in resident use areas the minimum unobstructed width must be 870 mm; and
    2. for doorways leading from a public corridor to a sole-occupancy unit the minimum unobstructed width must be 1070 mm; and
    3. where the doorway is fitted with two leaves and one leaf is secured in the closed position in accordance with D3D26(3)(e), the other leaf must permit an unobstructed opening not less than 870 mm wide in resident use areas and 800 mm wide in non-resident use areas; or
  5. in a Class 9b building used as an entertainment venue—
    1. in parts of the building used by the public, the width of the required exit or path of travel, and the unobstructed width of each doorway must not be less than 1 m and not more than 3 m; and
    2. in other parts of the building, doorways must comply with NSW D2D9; or
  6. in any other case except where it opens to a sanitary compartment or bathroom — 750 mm wide.

NSW D2D15 Discharge from exits2019: D1.10

Delete subclause D2D15(6) and insert NSW D2D15(6) as follows:

(6) In a Class 9b building used as an entertainment venue, at least half of the required number of exits from each storey or mezzanine, and at least half of the aggregate width of such exits must discharge otherwise than through the main entrance, or the area immediately adjacent to the main entrance to the building.

Table D2D18 Area per person according to use
Type of use Area per person
Art gallery, exhibition area, museum 4 m2
Bar — standing 0.5m2
Bar — other 1 m2
Board room 2 m2
Boarding house 15 m2
Cafe, church, dining room 1 m2
Carpark 30 m2
Computer room 25 m2
Court room — judicial area 10 m2
Court room — public seating 1 m2
Dance floor 0.5 m2
Dormitory 5 m2
Early childhood centre 4 m2
Factory — machine shop, fitting shop or like place for cutting, grading, finishing or fitting of metals or glass, except in the fabrication of structural steelwork or manufacture of vehicles or bulky products 5 m2
Factory — areas used for fabrication and processing other than a machine shop, fitting shop or the like. 50 m2
Factory — a space in which the layout and natural use of fixed plant or equipment determines the number of persons who will occupy the space during working hours Area per person determined by the use of the plant or equipment
Gymnasium 3 m2
Hostel, hotel, motel, guest house 15 m2
Indoor sports stadium—arena 10 m2
Kiosk 1 m2
Kitchen, laboratory, laundry 10 m2
Library — reading space 2 m2
Library — storage space 30 m2
Office, including one for typewriting or document copying 10 m2
Patient care areas 10 m2
Plant room — ventilation, electrical or other service units 30 m2
Plant room — boilers or power plant 50 m2
Reading room 2 m2
Restaurant 1 m2
School — general classroom 2 m2
School — multi-purpose hall 1 m2
School — staff room 10 m2
School — trade and practical area — primary 4 m2
School — trade and practical area — secondary As for workshop
Shop — space for sale of goods — at a level entered direct from the open air or any lower level 3 m2
Shop — space for sale of goods — all other levels 5 m2
Showroom — display area, covered mall or arcade 5 m2
Skating rink, based on rink area 1.5 m2
Spectator stand, audience viewing area — standing viewing area 0.3 m2
Spectator stand, audience viewing area — removable seating 1 m2
Spectator stand, audience viewing area — fixed seating Per number of seats
Spectator stand, audience viewing area — bench seating 450 mm/person
Storage space 30 m2
Swimming pool, based on pool area 1.5 m2
Switch room, transformer room 30 m2
Telephone exchange — private 30 m2
Theatre and public hall 1 m2
Theatre dressing room 4 m2
Transport terminal 2 m2
Workshop — for maintenance staff 30 m2
Workshop — for manufacturing processes As for factory
Table Notes

Bar standing is an area used by the standing patrons and extends not less than 1.5 m wide from the outside edge of the bar top for the length of the serving area of the bar.

Delete table (D2D18) and insert NSW table (D2D18) as follows:
NSW Table D2D18: Area per person according to use
Type of use Area per person
Art gallery, exhibition area, museum 4 m2
Auditorium — bench seating 450 mm/person
Auditorium — fixed seating count seats
Auditorium — removable seating 1 m2
Auditorium — standing area 0.5 m2
Bar — standing 0.5m2
Bar — other 1 m2
Board room 2 m2
Boarding house 15 m2
Cafe, church, dining room 1 m2
Carpark 30 m2
Computer room 25 m2
Court room — judicial area 10 m2
Court room — public seating 1 m2
Dance floor 0.5 m2
Dormitory 5 m2
Early childhood centre 4 m2
Entertainment venue — other than auditorium 1.2 m2
Factory — machine shop, fitting shop or like place for cutting, grading, finishing or fitting of metals or glass, except in the fabrication of structural steelwork or manufacture of vehicles or bulky products 5 m2
Factory — areas used for fabrication and processing other than a machine shop, fitting shop or the like 50 m2
Factory — a space in which the layout and natural use of fixed plant or equipment determines the number of persons who will occupy the space during working hours Area per person determined by the use of the plant or equipment
Gymnasium 3 m2
Hostel, hotel, motel, guest house 15 m2
Indoor sports stadium—arena 10 m2
Kiosk 1 m2
Kitchen, laboratory, laundry 10 m2
Library — reading space 2 m2
Library — storage space 30 m2
Office, including one for typewriting or document copying 10 m2
Patient care areas 10 m2
Plant room —ventilation, electrical or other service units 30 m2
Plant room — boilers or power plant 50 m2
Reading room 2 m2
Restaurant 1 m2
School — general classroom 2 m2
School — multi-purpose hall 1 m2
School — staff room 10 m2
School — trade and practical area — primary 4 m2
School — trade and practical area — secondary As for workshop
Shop — space for sale of goods — at a level entered direct from the open air or any lower level 3 m2
Shop — space for sale of goods — all other levels 5 m2
Showroom — display area, covered mall or arcade 5 m2
Skating rink, based on rink area 1.5 m2
Small live music or arts venue – dance floor 0.5 m2
Small live music or arts venue – Information and education facility 4 m2
Small live music or arts venue – other 1 m2
Spectator stand, audience viewing area — standing viewing area 0.3 m2
Spectator stand, audience viewing area — removable seating 1 m2
Spectator stand, audience viewing area — fixed seating Per number of seats
Spectator stand, audience viewing area — bench seating 450 mm/person
Storage space 30 m2
Swimming pool, based on pool area 1.5 m2
Switch room, transformer room 30 m2
Telephone exchange — private 30 m2
Theatre dressing room 4 m2
Transport terminal 2 m2
Workshop — for maintenance staff 30 m2
Workshop — for manufacturing processes As for factory
Note

Bar standing is an area used by the standing patrons and extends not less than 1.5 m wide from the outside edge of the bar top for the length of the serving area of the bar.